The Society Motif is from “The History of Playing Cards” by Rev. E.S. Taylor (1865). On page 238 there is a picture of the dog and the devil entitled ‘Deuce and Tray’.
An Ace of Spades symbol has been added to complete a representation of the first three cards in a standard pack: ace, deuce and three. The Ace and Deuce need no explanation. The dog ‘Tray’ is phonetically similar to ‘tres’ or ‘three’.
The E.P.C.S. Logo is based on the ‘Garter’ Ace of Spades and incorporates the motif in the centre.
The purpose of the Society is to